Is CVE-2026-0886 in the CISA KEV catalog?

No. CVE-2026-0886 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-0886?

CVE-2026-0886 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2026-0886?

CVE-2026-0886 has an EPSS score of 0.44% (35th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-0886?

Upgrade firefox on debian unstable to 147.0-1 or later. Fixes are available for 19 affected products.

CVE & CISA-KEV Catalog

CVE-2026-0886

MEDIUM

5.3

CVSS v3

NVD

Description

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

CWE-119Buffer Overflow

How to fix

Remediation Available

firefoxDebian

Fixed in:147.0-1CVE-2026-0886

firefoxRocky

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el7_9RHSA-2026:2231

Fixed in:0:140.7.0-1.el7_9.ppc64RHSA-2026:2231

Fixed in:0:140.7.0-1.el7_9RHSA-2026:2231

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_2RHSA-2026:2074

Fixed in:0:140.7.0-1.el8_4RHSA-2026:2073

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

firefoxRed Hat / RHEL

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el7_9RHSA-2026:2231

Fixed in:0:140.7.0-1.el7_9.ppc64RHSA-2026:2231

Fixed in:0:140.7.0-1.el7_9RHSA-2026:2231

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_2RHSA-2026:2074

Fixed in:0:140.7.0-1.el8_4RHSA-2026:2073

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

firefox-debuginfoRocky

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el7_9RHSA-2026:2231

Fixed in:0:140.7.0-1.el7_9.ppc64RHSA-2026:2231

Fixed in:0:140.7.0-1.el7_9RHSA-2026:2231

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_4RHSA-2026:2073

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_2RHSA-2026:2074

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

firefox-debuginfoRed Hat / RHEL

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el7_9RHSA-2026:2231

Fixed in:0:140.7.0-1.el7_9.ppc64RHSA-2026:2231

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_4RHSA-2026:2073

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_2RHSA-2026:2074

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

firefox-debugsourceRed Hat / RHEL

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_4RHSA-2026:2073

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_2RHSA-2026:2074

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

firefox-debugsourceRocky

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2271

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2271

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_8RHSA-2026:2069

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_10RHSA-2026:0667

Fixed in:0:140.7.0-1.el8_6RHSA-2026:2070

Fixed in:0:140.7.0-1.el8_4RHSA-2026:2073

Fixed in:0:140.7.0-1.el8_2RHSA-2026:2074

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_0RHSA-2026:2047

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

firefox-x11Rocky

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

firefox-x11Red Hat / RHEL

Fixed in:0:140.7.0-1.el9_4RHSA-2026:2041

Fixed in:0:140.7.0-1.el9_2RHSA-2026:2044

Fixed in:0:140.7.0-1.el9_6RHSA-2026:2043

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0694

thunderbirdRed Hat / RHEL

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-1.el8_4RHSA-2026:1461

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_2RHSA-2026:1471

Fixed in:0:140.7.0-1.el8_4RHSA-2026:1461

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

thunderbirdRocky

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_2RHSA-2026:1471

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_4RHSA-2026:1461

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

thunderbird-debuginfoRocky

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_2RHSA-2026:1471

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_4RHSA-2026:1461

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

thunderbird-debuginfoRed Hat / RHEL

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_2RHSA-2026:1471

Fixed in:0:140.7.0-1.el8_4RHSA-2026:1461

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

thunderbird-debugsourceRocky

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_2RHSA-2026:1471

Fixed in:0:140.7.0-1.el8_4RHSA-2026:1461

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

thunderbird-debugsourceRed Hat / RHEL

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_0RHSA-2026:2286

Fixed in:0:140.7.0-1.el10_1RHSA-2026:2286

Fixed in:0:140.7.0-1.el8_8RHSA-2026:1462

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_2RHSA-2026:1471

Fixed in:0:140.7.0-1.el8_4RHSA-2026:1461

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el8_10RHSA-2026:2220

Fixed in:0:140.7.0-1.el8_6RHSA-2026:1487

Fixed in:0:140.7.0-1.el9_2RHSA-2026:1415

Fixed in:0:140.7.0-1.el9_0RHSA-2026:1413

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-1.el9_4RHSA-2026:1414

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

Fixed in:0:140.7.0-2.el9_6RHSA-2026:1320

Fixed in:0:140.7.0-1.el9_7RHSA-2026:0924

thunderbirdUbuntu

Fixed in:1:140.7.1+build1-0ubuntu0.22.04.1USN-7991-1

DeveloperEditionWindows application

Affected:128.0 140.7.0Fixed in:140.7.0Mozilla

Affected:115.32.0Fixed in:115.32.0Mozilla

Affected:147.0Fixed in:147.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:115.32.0Fixed in:115.32.0Mozilla

Affected:147.0Fixed in:147.0Mozilla

Affected:128.0 140.7.0Fixed in:140.7.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:140.7.0Fixed in:140.7.0Mozilla

Affected:147.0Fixed in:147.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.44%probability of exploitation in 30 days

35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Vendor Advisory5

Other references1

bugzilla.mozilla.org

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

Embed a live status badge for CVE-2026-0886

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-13.